Window grouping



FIG. 1 is a top, left side and front perspective view of a window grouping showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevation view; the right side is identical to the left;

FIG. 5 is a front elevation view; the rear is identical to the front; and,

FIG. 6 is a top, left side and front perspective view of a second embodiment of a window grouping showing our new design. 

CLAIM We claim the ornamental design for a window grouping, as shown and described. 